CN210370524U - Intelligent composite material sucker rod system - Google Patents
Intelligent composite material sucker rod system Download PDFInfo
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- CN210370524U CN210370524U CN201920913400.XU CN201920913400U CN210370524U CN 210370524 U CN210370524 U CN 210370524U CN 201920913400 U CN201920913400 U CN 201920913400U CN 210370524 U CN210370524 U CN 210370524U
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Abstract
The utility model discloses an intelligent composite material sucker rod system, which comprises a composite material sucker rod (1), a measurement and control system (2), a data processing system (3) and an alarm system (4) which are connected in sequence; the composite material sucker rod (1) comprises a composite material rod body (5), a measurement and control optical fiber unit (7) positioned in the composite material rod body (5) and connecting hardware fittings (6) connected to the upper end and the lower end of the composite material rod body (5); the measurement and control optical fiber unit (7) and the measurement and control system (2) in the composite material sucker rod (1) realize the transmission of measurement and control signals through the optical fiber (8); the composite material rod body (5) and the measurement and control optical fiber unit (7) are integrally formed through a pultrusion process. The utility model has the advantages of reasonable design, intensity is high, the quality is light, the anticorrosion, antifatigue, the security is high, can monitor the temperature and the stress data of sucker rod, and intelligent degree is high.
Description
Technical Field
The utility model relates to a sucker rod system, concretely relates to intelligent combined material sucker rod system.
Background
The sucker rod is an important part of the oil pumping equipment and transfers the motion and energy of the oil pumping machine to a downhole oil well pump. The fatigue strength and the service life of the sucker rod determine and influence the maximum pump-down depth and the discharge capacity of the whole set of pumping equipment.
In the oil pumping process, the sucker rod string bears the action of asymmetric cyclic load, and the working media of the sucker rod string are crude oil, formation water and natural gas. The main failure mode of the sucker rod is fatigue fracture or corrosion fatigue fracture. The breaking accident of the sucker rod can seriously affect the production of crude oil, increase the well repairing operation cost and improve the cost of the crude oil.
With the gradual increase of deep wells, ultra-deep wells, corrosion wells and eccentric wear wells in oilfield exploitation in China, the well and mine environment is severe, the exploitation difficulty is increased, and the number of oil pumping unit overloaded wells is increased, so that a novel sucker rod system which has the advantages of high strength, light weight, corrosion resistance, fatigue resistance, eccentric wear resistance, electric energy saving, convenience in operation and high intelligent degree is urgently needed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at solving the technical insufficiency that current sucker rod exists, provide a structural design is reasonable, intensity is high, the quality is light, anticorrosion, antifatigue, security is high, can monitor the intelligent combined material sucker rod system of sucker rod temperature and stress data.
The technical scheme is as follows: in order to realize the utility model discloses a purpose, the utility model discloses take following technical scheme:
an intelligent composite material sucker rod system comprises a composite material sucker rod, a measurement and control system, a data processing system and an alarm system which are connected in sequence; the composite material sucker rod comprises a composite material rod body, a measurement and control optical fiber unit positioned in the composite material rod body and a connecting hardware fitting connected to the upper end and the lower end of the composite material rod body; the measurement and control optical fiber unit and the measurement and control system in the composite material sucker rod realize the transmission of measurement and control signals through optical fibers;
the composite material rod body and the measurement and control optical fiber unit are integrally formed through a pultrusion process.
As a preferred scheme, in the intelligent composite material sucker rod system, the strength of the composite material rod body is more than or equal to 2500MPa, and the modulus is more than or equal to 120 GPa; the composite material rod body is made of one or more of glass fiber, carbon fiber, basalt fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, poly-p-phenylene benzobisoxazole fiber or polyimide fiber and thermoplastic resin or thermosetting resin through a pultrusion process.
As a preferred scheme, in the intelligent composite sucker rod system, the reinforcing material of the composite sucker rod body is a mixture of glass fibers and carbon fibers; wherein the outer layer is glass fiber and the inner side is carbon fiber.
In the intelligent composite material sucker rod system, the outer surface of the measurement and control optical fiber unit is coated with the epoxy acrylate or polyacrylate layer, and the measurement and control optical fiber unit and the composite material rod body are formed in one step through a pultrusion process, so that the interface performance of the measurement and control optical fiber unit is improved.
In the above intelligent composite sucker rod system, the measurement and control optical fiber unit is composed of one or more optical fibers or optical cables, and all the optical fibers or optical cables are tight-sleeved optical fibers; the measurement and control optical fiber units are arranged in the composite material rod body in a centralized mode or in a dispersed mode.
As a preferred scheme, the measurement and control system of the intelligent composite material sucker rod system adopts a distributed optical fiber temperature strain monitoring system (BOTDA). The measurement and control system can send out signals independently, has double channels and realizes real-time measurement of two parameters of temperature and stress.
As a preferred scheme, the intelligent composite material sucker rod system is characterized in that the measurement and control system is connected with a data processing system; the measurement and control system transmits data of real-time test to the data processing system through a data line, the data processing system records the test data, transverse data comparison is carried out on the test data and the test data in the last test period or a plurality of test periods, and the alarm system is started when abnormal test is found.
The intelligent composite material sucker rod system is characterized in that the composite material sucker rod is a stressed original element in the pumping unit system, stress and temperature borne by the composite material sucker rod are transmitted to the measurement and control system through the measurement and control optical fiber unit and are transmitted to the data processing system (DPS data processing system) in real time, the recording and analysis are carried out, if abnormal conditions exist, the alarm system is started in time, the alarm system 4 is C/S framework configuration software based on a database, or the pumping unit system is automatically stopped to work, and accidents are prevented.
In the intelligent composite material sucker rod system, the load transmitted by the connection of the connecting hardware fitting and the composite material rod body can reach the breaking force of the composite material rod body in a high-temperature state in the pit.
Preferably, the matrix material of the composite material rod body is thermosetting epoxy resin.
As the preferred scheme, the connection hardware fitting is connected with the two ends of the composite material rod body by adopting adhesive joint or mechanical connection. The link fitting is connected with the pumping unit and the underground system respectively.
Has the advantages that: the utility model provides an intelligence combined material sucker rod system compares with prior art and has following advantage:
(1) the utility model has the advantages of reasonable design, intensity is high, the quality is light, antifatigue, security and intelligent degree. The temperature and the stress of the intelligent composite sucker rod at any depth under the well can be monitored, recorded and analyzed in real time, an alarm system is started when the temperature and the stress under the well exceed the set safety requirements, and the underground problems can be found in advance according to the recorded real-time temperature and the recorded stress of the intelligent composite sucker rod, so that a reasonable maintenance plan is made, and accidents are avoided; the underground condition is completely digitalized and transparent, so that the production can be effectively adjusted, reasonable production planning is performed according to the data, and the production efficiency is improved;
(2) the intelligent composite material sucker rod system is super resistant to high and temperature corrosion, and the pump detection period can be prolonged;
(3) the elastic modulus of the intelligent composite material sucker rod system can be designed according to actual needs, and the hybrid sucker rod string design software is utilized to optimally design the sucker rod system, so that the over-stroke can be realized, and the crude oil yield is increased.
Drawings
FIG. 1 is a schematic diagram of an intelligent composite sucker rod.
Fig. 2 is a schematic structural view of a composite material rod body.
Detailed Description
The present invention will be further explained with reference to specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications to the various equivalent forms of the invention, which may occur to those skilled in the art upon reading the present invention, fall within the scope of the appended claims.
Example 1
As shown in fig. 1 and fig. 2, an intelligent composite sucker rod system comprises a composite sucker rod 1, a measurement and control system 2, a data processing system 3 and an alarm system 4 which are connected in sequence; the composite material sucker rod 1 comprises a composite material rod body 5, a measurement and control optical fiber unit 7 positioned in the composite material rod body 5 and connecting hardware fittings 6 connected to the upper end and the lower end of the composite material rod body 5; the measurement and control optical fiber unit 7 and the measurement and control system 2 in the composite material sucker rod 1 realize the transmission of measurement and control signals through an optical fiber 8;
the composite material rod body 5 and the measurement and control optical fiber unit 7 are integrally formed through a pultrusion process.
The measurement and control system 2, the data processing system 3 and the alarm system 4 are all connected with an external power supply to carry out power supply work.
In the intelligent composite material sucker rod system, the strength of the composite material rod body 5 is more than or equal to 2500MPa, and the modulus is more than or equal to 120 GPa; the composite material rod body 5 is made of one or more of glass fiber, carbon fiber, basalt fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, poly-p-phenylene benzobisoxazole fiber or polyimide fiber and thermoplastic resin or thermosetting resin through a pultrusion process.
In the above intelligent composite material sucker rod system, the measurement and control optical fiber unit 7 is composed of one or more optical fibers or optical cables, and all the optical fibers or optical cables are tight-sleeved optical fibers; the outer surface of the measurement and control optical fiber unit 7 is coated with an epoxy acrylate or polyacrylate layer, and the measurement and control optical fiber unit and the composite material rod body 5 are formed in one step through a pultrusion process. The measurement and control optical fiber units 7 are arranged in the composite material rod body 5 in a centralized mode or in a dispersed mode.
In the above intelligent composite material sucker rod system, the measurement and control system 2 adopts a distributed optical fiber temperature strain monitoring system (BOTDA) for detection.
In the intelligent composite material sucker rod system, the wiring terminal of the distributed optical fiber temperature strain monitoring system (BOTDA) is connected with the wiring terminal of the DPS data processing system through a line; the distributed optical fiber temperature strain monitoring system (BOTDA) transmits real-time test data to a DPS data processing system 3 through a data line, the DPS data processing system 3 records the test data and performs transverse data comparison with the previous test period or a plurality of test periods, and a terminal of the DPS data processing system 3 is connected with a terminal of an alarm system 4 through a line; and (3) if the abnormal condition is found, starting an alarm system 4 (the alarm system 4 is C/S (client/server) architecture configuration software based on a database) or automatically stopping the operation of the pumping unit system.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. An intelligent composite material sucker rod system is characterized by comprising a composite material sucker rod (1), a measurement and control system (2), a data processing system (3) and an alarm system (4) which are connected in sequence; the composite sucker rod (1) comprises a composite rod body (5), a measurement and control optical fiber unit (7) positioned in the composite rod body (5) and connecting hardware fittings (6) connected to the upper end and the lower end of the composite rod body (5); the measurement and control optical fiber unit (7) and the measurement and control system (2) in the composite material sucker rod (1) realize the transmission of measurement and control signals through the optical fiber (8);
the composite material rod body (5) and the measurement and control optical fiber unit (7) are integrally formed through a pultrusion process.
2. The intelligent composite sucker rod system of claim 1, wherein the outer surface of the measurement and control optical fiber unit (7) is coated with an epoxy acrylate or polyacrylate layer, and the measurement and control optical fiber unit (7) and the composite rod body (5) are formed in one step through a pultrusion process.
3. The intelligent composite sucker rod system of claim 2, wherein the measurement and control optical fiber unit (7) is composed of more than 2 optical fibers or optical cables, all the optical fibers or optical cables are tight-sleeved optical fibers, and the measurement and control optical fiber unit (7) is arranged in the composite sucker rod body (5) in a centralized manner or in a dispersed manner.
4. The intelligent composite sucker rod system of claim 1, wherein the measurement and control system (2) is a distributed optical fiber temperature strain monitoring system.
5. The intelligent composite sucker rod system of claim 1, wherein the measurement and control system (2) is connected to a data processing system (3); the measurement and control system (2) transmits data of real-time test to the data processing system (3) through a data line, the data processing system (3) records test data, transverse data comparison is carried out on the test data and the previous test period or a plurality of test periods, and the alarm system (4) is started when abnormal conditions are found.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920913400.XU CN210370524U (en) | 2019-06-18 | 2019-06-18 | Intelligent composite material sucker rod system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920913400.XU CN210370524U (en) | 2019-06-18 | 2019-06-18 | Intelligent composite material sucker rod system |
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| CN210370524U true CN210370524U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338908A (en) * | 2021-07-12 | 2021-09-03 | 中国石油大学(华东) | Multifunctional carbon fiber and optical fiber composite rod and manufacturing method thereof |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338908A (en) * | 2021-07-12 | 2021-09-03 | 中国石油大学(华东) | Multifunctional carbon fiber and optical fiber composite rod and manufacturing method thereof |
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